-29-
Pin No.
Pin Name
I/O
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VDD
XRST
MUTE
DATA
XLAT
CLOK
SENS
SCLK
ATSK
WFCK
XUGF
XPCK
XROF
C2PO
SCOR
C4M
WDCK
GND
COUT
MIRR
DFCT
FOK
PWM1
LOCK
MDP
SWIL
FSTO
VDD
SFDR
SRDR
TRDR
TRDT
FFDR
FRDR
GND
TEST
TEST1
VC
FE
SE
–
I
I
I
I
I
O
I
I/O
O
O
O
O
O
O
O
O
–
I/O
I/O
I/O
I/O
I
I/O
O
I
O
–
O
O
O
O
O
O
–
I
I
I
I
I
Digital power supply
System reset. Rest at “L”.
Muting input. Mute at “H”.
Serial data input from CPU
Latch input from CPU. Latched at falling edge.
Serial data transfer clock input from CPU
SENS output. Output to CPU.
SENS serial data read clock input
Input/output for antishock
WFCK output (Not used)
XUGF output. MNT0, RFCK output by switching command. (Not used)
XPCK output. MNT1 output by switching command. (Not used)
CFS output. MNT2, XROF output by switching command (Not used)
C2PO output. MNT3, GTOP output by switching command.
“H” is output when either subcode sync S0 or S1 is detected.
4.2336 MHz output. At CAV-W mode or when variable pitch, 1/4 division of V16M is output
(Not used)
Word clock output. F = 2Fs. GRSCOR is output by switching command (Not used)
Digital GND
Input/output of track number count signal
Input/output of mirror signal (Not used)
Input/output of defect signal (Not used)
Input/output of focus OK signal (Not used)
External control of spindle motor input
GFS is sampled at 460 Hz. “H” is output when GFS is “H”, “L” is output when GFS is “L” eight
times consecutively. Input when LKIN = “I” (Not used)
Servo control of spindle motor output
Innermost perimeter of disc detecting signal input.
2/3 division of XTAI pin output (Not used)
Digital power supply
Sled drive output
Sled drive output
Tracking drive output
Tracking drive output
Focus drive output
Focus drive output
Digital GND
Testing pin . Normally GND.
Testing pin . Normally GND.
Middle point voltage input. VDD/2.
Focus error signal input
Sled error signal input
IC DESCRIPTION - 5/6 (CXD2585Q) - 1/2
